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Chris Lattner [Mon, 11 Oct 2004 05:00:30 +0000 (05:00 +0000)]
This testcase ensures that we can SRA a global even if part of the global
cannot be SRA'd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16915
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Chris Lattner [Mon, 11 Oct 2004 05:00:12 +0000 (05:00 +0000)]
These testcases check to see if we can promote malloc's to globals in some
cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16914
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Chris Lattner [Mon, 11 Oct 2004 04:47:18 +0000 (04:47 +0000)]
Don't miss global optimizations because we run before the inliner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16913
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Chris Lattner [Mon, 11 Oct 2004 04:07:27 +0000 (04:07 +0000)]
Fix SingleSource/Benchmarks/McGill/chomp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16912
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Chris Lattner [Mon, 11 Oct 2004 03:57:30 +0000 (03:57 +0000)]
If we are trying to create a ConstantExpr cast that is really a GEP to the
first element of an array, return a GEP instead of a cast. This allows us
to transparently fold this:
int* getelementptr (int* cast ([100 x int]* %Gbody to int*), int 40)
into this:
int* getelementptr ([100 x int]* %Gbody, int 0, int 40)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16911
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Misha Brukman [Mon, 11 Oct 2004 02:06:40 +0000 (02:06 +0000)]
Fix grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16910
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Misha Brukman [Mon, 11 Oct 2004 00:56:41 +0000 (00:56 +0000)]
Remove exhuberant-style comments which remained from copying file from `sample'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16909
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Misha Brukman [Mon, 11 Oct 2004 00:55:47 +0000 (00:55 +0000)]
Fix file header comment; remove sample project (extra-verbose) comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16908
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Misha Brukman [Mon, 11 Oct 2004 00:54:59 +0000 (00:54 +0000)]
Fix file header comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16907
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Misha Brukman [Sun, 10 Oct 2004 23:37:40 +0000 (23:37 +0000)]
ModuloScheduling has moved to lib/Target/SparcV9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16906
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Misha Brukman [Sun, 10 Oct 2004 23:36:09 +0000 (23:36 +0000)]
Add ModuloScheduling to the recursive build tree
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16905
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Misha Brukman [Sun, 10 Oct 2004 23:34:50 +0000 (23:34 +0000)]
Adjust header file inclusion due to move
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16904
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Misha Brukman [Sun, 10 Oct 2004 23:34:36 +0000 (23:34 +0000)]
Adjust comment header and paths to refect move
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16903
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Misha Brukman [Sun, 10 Oct 2004 23:33:20 +0000 (23:33 +0000)]
ModuloScheduling moved to lib/Target/SparcV9 as it is SparcV9-specific
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16902
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Chris Lattner [Sun, 10 Oct 2004 23:14:11 +0000 (23:14 +0000)]
Just because we cannot completely eliminate all uses of a global, we can
still optimize away all of the indirect calls and loads, etc from it.
This turns code like this:
if (G != 0)
G();
into
if (G != 0)
ActualCallee();
This triggers a couple of times in gcc and libstdc++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16901
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Chris Lattner [Sun, 10 Oct 2004 23:12:33 +0000 (23:12 +0000)]
Another testcase. We should be able to devirtualize the call even though
we cannot completely eliminate the global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16900
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Reid Spencer [Sun, 10 Oct 2004 22:54:46 +0000 (22:54 +0000)]
Reorganize FINDLIBS to make most comment libs searched first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16899
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Reid Spencer [Sun, 10 Oct 2004 22:52:14 +0000 (22:52 +0000)]
Initial version of automake Makefile.am file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16898
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Reid Spencer [Sun, 10 Oct 2004 22:51:03 +0000 (22:51 +0000)]
Add the new InstrSched directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16897
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Reid Spencer [Sun, 10 Oct 2004 22:50:31 +0000 (22:50 +0000)]
Fix named of a library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16896
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Tanya Lattner [Sun, 10 Oct 2004 22:44:35 +0000 (22:44 +0000)]
Added debug information. Fixed several bugs in the reconstruct loop function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16895
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Reid Spencer [Sun, 10 Oct 2004 22:36:40 +0000 (22:36 +0000)]
Initial version of automake Makefile.am file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16894
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Reid Spencer [Sun, 10 Oct 2004 22:20:40 +0000 (22:20 +0000)]
Initial version of automake Makefile.am file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16893
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Reid Spencer [Sun, 10 Oct 2004 22:17:39 +0000 (22:17 +0000)]
Build both archive and relinked objects
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16892
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Reid Spencer [Sun, 10 Oct 2004 22:17:02 +0000 (22:17 +0000)]
Directory changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16891
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Reid Spencer [Sun, 10 Oct 2004 22:16:50 +0000 (22:16 +0000)]
A configure script to configure LLVM for compilation with automake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16890
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Reid Spencer [Sun, 10 Oct 2004 22:16:37 +0000 (22:16 +0000)]
Initial version of common automake Rules for LLVM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16889
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Reid Spencer [Sun, 10 Oct 2004 22:07:57 +0000 (22:07 +0000)]
Initial version of automake Makefile.am file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16888
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Reid Spencer [Sun, 10 Oct 2004 21:19:41 +0000 (21:19 +0000)]
Remove the InstrSched directory (moved to SparcV9)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16887
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Reid Spencer [Sun, 10 Oct 2004 21:18:31 +0000 (21:18 +0000)]
Directory no long exists (moved to Targets/SparcV9).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16886
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Reid Spencer [Sun, 10 Oct 2004 20:43:57 +0000 (20:43 +0000)]
Initial version of automake Makefile.am file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16885
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Brian Gaeke [Sun, 10 Oct 2004 20:34:17 +0000 (20:34 +0000)]
Fix assertion failure when calling or returning from a function which
returns 'bool' type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16884
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Brian Gaeke [Sun, 10 Oct 2004 19:57:21 +0000 (19:57 +0000)]
Implement eliminateCallFramePseudoInstr().
Wrap a long comment line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16883
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Brian Gaeke [Sun, 10 Oct 2004 19:57:20 +0000 (19:57 +0000)]
Model calls as *both* using *and* killing O0..O5, because callees use the
argument values passed in (so they're not dead until *after* the call),
and callees are free to modify those registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16882
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Brian Gaeke [Sun, 10 Oct 2004 19:57:18 +0000 (19:57 +0000)]
Fix whitespace and wrap some long lines.
Deal with allocating stack space for outgoing args and copying them into the
correct stack slots (at least, we can copy <=32-bit int args).
We now correctly generate ADJCALLSTACK* instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16881
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Reid Spencer [Sun, 10 Oct 2004 19:13:03 +0000 (19:13 +0000)]
Top level makefile for building LLVM with automake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16880
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Reid Spencer [Sun, 10 Oct 2004 19:09:33 +0000 (19:09 +0000)]
Ensure timestamp on saved contents of configure.ac is not changed.
Use correct options to automake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16879
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Chris Lattner [Sun, 10 Oct 2004 17:07:12 +0000 (17:07 +0000)]
Fix 2004-10-10-CastStoreOnce.llx, by adjusting types back if we strip off a cast
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16878
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Chris Lattner [Sun, 10 Oct 2004 17:06:09 +0000 (17:06 +0000)]
New testcase that crashes -globalopt. I found this through inspection, not
actually in the wild :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16877
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Chris Lattner [Sun, 10 Oct 2004 16:47:33 +0000 (16:47 +0000)]
Implement GlobalOpt/deadglobal-2.llx, deletion of globals that are only
stored to, but are stored at variable indexes. This occurs at least in
176.gcc, but probably others, and we should handle it for completeness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16876
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Chris Lattner [Sun, 10 Oct 2004 16:46:48 +0000 (16:46 +0000)]
New testcase we were not handling before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16875
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Chris Lattner [Sun, 10 Oct 2004 16:43:46 +0000 (16:43 +0000)]
Avoid calling use_size() which could (in theory) be expensive if the global
has a large number of users. Instead, just keep track of whether we're
making changes as we do so.
This patch has no functionlity changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16874
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Chris Lattner [Sun, 10 Oct 2004 16:26:13 +0000 (16:26 +0000)]
bling bling!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16873
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Chris Lattner [Sat, 9 Oct 2004 21:50:05 +0000 (21:50 +0000)]
A testcase that globalopt now handles
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16872
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Chris Lattner [Sat, 9 Oct 2004 21:48:45 +0000 (21:48 +0000)]
Eliminate global pointers that are only stored a single value and null if
we know that all uses of the global will trap if the pointer contained is
null. In this case, we forward substitute the stored value to any uses.
This has the effect of devirtualizing trivial globals in trivial cases. For
example, 164.gzip contains this:
gzip.h:extern int (*read_buf) OF((char *buf, unsigned size));
bits.c: read_buf = file_read;
deflate.c: lookahead = read_buf((char*)window,
deflate.c: n = read_buf((char*)window+strstart+lookahead, more);
Since read_buf has to point to file_read at every use, we just replace
the calls through read_buf with a direct call to file_read.
This occurs in several benchmarks, including 176.gcc and 164.gzip. Direct
calls are good and stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16871
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Chris Lattner [Sat, 9 Oct 2004 21:13:51 +0000 (21:13 +0000)]
Instead of silently breaking, print notification of why this doesn't work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16870
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Chris Lattner [Sat, 9 Oct 2004 19:37:02 +0000 (19:37 +0000)]
Fix grammaro
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16869
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Chris Lattner [Sat, 9 Oct 2004 19:30:36 +0000 (19:30 +0000)]
Use DEBUG instead of DebugFlag directly, as DebugFlag does not respect
-debug-only!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16868
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Chris Lattner [Sat, 9 Oct 2004 19:19:57 +0000 (19:19 +0000)]
It looks like we're not releasing 1.4 with llvm.org as the official domain
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16867
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Brian Gaeke [Sat, 9 Oct 2004 05:58:27 +0000 (05:58 +0000)]
update according to tonight's info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16866
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Brian Gaeke [Sat, 9 Oct 2004 05:57:01 +0000 (05:57 +0000)]
Implement getModuleMatchQuality and getJITMatchQuality so that v8 will be the
default 32/BE target on sparc hosts, and ppc will continue to be the default
on other hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16865
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Chris Lattner [Sat, 9 Oct 2004 03:32:52 +0000 (03:32 +0000)]
Fix infinite loop due to iteration
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16864
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Chris Lattner [Sat, 9 Oct 2004 02:50:40 +0000 (02:50 +0000)]
Implement sub.ll:test17, -X/C -> X/-C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16863
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Chris Lattner [Sat, 9 Oct 2004 02:50:01 +0000 (02:50 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16862
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Chris Lattner [Sat, 9 Oct 2004 02:18:58 +0000 (02:18 +0000)]
Add a check to avoid an assertion on malformed input
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16861
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Chris Lattner [Fri, 8 Oct 2004 22:41:46 +0000 (22:41 +0000)]
The person who was planning to add SSE support isn't anymore, so disable
the -sse* options (to avoid misleading people).
Also, the stack alignment of the target doesn't depend on whether SSE is
eventually implemented, so remove a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16860
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Chris Lattner [Fri, 8 Oct 2004 22:24:31 +0000 (22:24 +0000)]
Fix a major regression from the bugfix for 2004-10-08-SelectSetCCFold.llx,
which prevented setcc's from being folded into branches. It appears that
conditional branchinst's CC operand is actually operand(2), not operand(0)
as we might expect. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16859
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Chris Lattner [Fri, 8 Oct 2004 22:05:31 +0000 (22:05 +0000)]
If we found a dead global, we should at least delete it...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16858
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Chris Lattner [Fri, 8 Oct 2004 20:59:28 +0000 (20:59 +0000)]
* Pull out the meat of runOnModule into another function for clarity.
* Do not lead dangling dead constants prevent optimization
* Iterate global optimization while we're making progress.
These changes allow us to be more aggressive, handling cases like
GlobalOpt/iterate.llx without a problem (turning it into 'ret int 0').
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16857
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Chris Lattner [Fri, 8 Oct 2004 20:57:46 +0000 (20:57 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16856
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Chris Lattner [Fri, 8 Oct 2004 20:25:55 +0000 (20:25 +0000)]
We might as well delete the known-dead global sooner rather than later since
we know it is dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16855
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Misha Brukman [Fri, 8 Oct 2004 19:43:31 +0000 (19:43 +0000)]
Hyphenate target-(in)dependent for more tasty grammar goodness (tm)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16854
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Chris Lattner [Fri, 8 Oct 2004 19:15:44 +0000 (19:15 +0000)]
Temporarily disable a buggy transformation until it can be fixed. This fixes
254.gap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16853
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Misha Brukman [Fri, 8 Oct 2004 18:30:22 +0000 (18:30 +0000)]
Adjust paths due to moving InstrSched to lib/Target/SparcV9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16852
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Misha Brukman [Fri, 8 Oct 2004 18:14:56 +0000 (18:14 +0000)]
Use the SparcV9-marked instr scheduling library
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16851
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Misha Brukman [Fri, 8 Oct 2004 18:12:53 +0000 (18:12 +0000)]
InstrSched has been moved to lib/Target/SparcV9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16850
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Misha Brukman [Fri, 8 Oct 2004 18:12:14 +0000 (18:12 +0000)]
InstrSched is SparcV9-specific and so has been moved to lib/Target/SparcV9/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16849
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Misha Brukman [Fri, 8 Oct 2004 18:11:14 +0000 (18:11 +0000)]
Single-space instead of double-spacing in the Makefile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16848
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Misha Brukman [Fri, 8 Oct 2004 18:10:48 +0000 (18:10 +0000)]
Build InstrSched as well, and all three subdirs can be built independently
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16847
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Misha Brukman [Fri, 8 Oct 2004 18:10:01 +0000 (18:10 +0000)]
* Adjust for the move to lib/Target/SparcV9/InstrSched
* Rename library to mark it SparcV9-specific
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16846
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Misha Brukman [Fri, 8 Oct 2004 18:05:25 +0000 (18:05 +0000)]
Single-space instead of double-spacing in the Makefile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16845
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Reid Spencer [Fri, 8 Oct 2004 18:01:31 +0000 (18:01 +0000)]
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16844
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Reid Spencer [Fri, 8 Oct 2004 17:59:29 +0000 (17:59 +0000)]
Make it so that positional parameters can have spaces in them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16843
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Chris Lattner [Fri, 8 Oct 2004 17:32:09 +0000 (17:32 +0000)]
Implement SRA for global variables. This allows the other global variable
optimizations to trigger much more often. This allows the elimination of
several dozen more global variables in Programs/External. Note that we only
do this for non-constant globals: constant globals will already be optimized
out if the accesses to them permit it.
This implements Transforms/GlobalOpt/globalsra.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16842
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Chris Lattner [Fri, 8 Oct 2004 17:29:47 +0000 (17:29 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16841
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Chris Lattner [Fri, 8 Oct 2004 16:34:13 +0000 (16:34 +0000)]
Fix bug: 2004-10-08-SelectSetCCFold.llx. Normally this is hidden by the
instcombine xform, which is why we didn't notice it before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16840
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Chris Lattner [Fri, 8 Oct 2004 16:33:40 +0000 (16:33 +0000)]
New testcase. The setcc is only used by a select, but not as a condition:
it cannot be folded in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16839
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Misha Brukman [Fri, 8 Oct 2004 14:59:05 +0000 (14:59 +0000)]
Properly `quote' names, and don't forget to add the ending quote!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16838
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Reid Spencer [Fri, 8 Oct 2004 05:33:35 +0000 (05:33 +0000)]
Add the --with-automake option to AutoRegen.sh and provide the automake
version of the configure script. This is an early commit of the automake
support so that automake support can be tested on multiple platforms. Many
additional Makefile.am need to be added to LLVM before this is of any use.
Please wait until automake support is announced on llvmdev list before
using the --with-automake option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16837
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Chris Lattner [Fri, 8 Oct 2004 05:07:56 +0000 (05:07 +0000)]
Instcombine (X & FF00) + xx00 -> (X+xx00) & FF00, implementing and.ll:test27
This comes up when doing adds to bitfield elements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16836
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Chris Lattner [Fri, 8 Oct 2004 05:03:25 +0000 (05:03 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16835
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Chris Lattner [Fri, 8 Oct 2004 03:46:20 +0000 (03:46 +0000)]
Little patch to turn (shl (add X, 123), 4) -> (add (shl X, 4), 123 << 4)
This triggers in cases of bitfield additions, opening opportunities for
future improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16834
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Chris Lattner [Fri, 8 Oct 2004 03:41:59 +0000 (03:41 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16833
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Nate Begeman [Fri, 8 Oct 2004 02:49:24 +0000 (02:49 +0000)]
Implement logical and with an immediate that consists of a contiguous block
of one or more 1 bits (may wrap from least significant bit to most
significant bit) as the rlwinm rather than andi., andis., or some longer
instructons sequence.
int andn4(int z) { return z & -4; }
int clearhi(int z) { return z & 0x0000FFFF; }
int clearlo(int z) { return z & 0xFFFF0000; }
int clearmid(int z) { return z & 0x00FFFF00; }
int clearwrap(int z) { return z & 0xFF0000FF; }
_andn4:
rlwinm r3, r3, 0, 0, 29
blr
_clearhi:
rlwinm r3, r3, 0, 16, 31
blr
_clearlo:
rlwinm r3, r3, 0, 0, 15
blr
_clearmid:
rlwinm r3, r3, 0, 8, 23
blr
_clearwrap:
rlwinm r3, r3, 0, 24, 7
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16832
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Misha Brukman [Fri, 8 Oct 2004 01:11:15 +0000 (01:11 +0000)]
Fix usage description typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16831
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Misha Brukman [Fri, 8 Oct 2004 01:10:52 +0000 (01:10 +0000)]
Make comment header span the entire line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16830
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Misha Brukman [Fri, 8 Oct 2004 00:55:43 +0000 (00:55 +0000)]
Describe how to configure tests to work with f2c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16829
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Misha Brukman [Fri, 8 Oct 2004 00:41:27 +0000 (00:41 +0000)]
* Reformat to fit 80 cols
* Add missing <li> tags
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16828
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Nate Begeman [Thu, 7 Oct 2004 22:30:03 +0000 (22:30 +0000)]
Several fixes and enhancements to the PPC32 backend.
1. Fix an illegal argument to getClassB when deciding whether or not to
sign extend a byte load.
2. Initial addition of isLoad and isStore flags to the instruction .td file
for eventual use in a scheduler.
3. Rewrite of how constants are handled in emitSimpleBinaryOperation so
that we can emit the PowerPC shifted immediate instructions far more
often. This allows us to emit the following code:
int foo(int x) { return x | 0x00F0000; }
_foo:
.LBB_foo_0: ; entry
; IMPLICIT_DEF
oris r3, r3, 15
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16826
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Nate Begeman [Thu, 7 Oct 2004 22:26:12 +0000 (22:26 +0000)]
Add ori reg, reg, 0 as a move instruction. This can be generated from
loading a 32bit constant into a register whose low halfword is all zeroes.
We now omit the ori after the lis for the following C code:
int bar(int y) { return y * 0x00F0000; }
_bar:
.LBB_bar_0: ; entry
; IMPLICIT_DEF
lis r2, 15
mullw r3, r3, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16825
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Nate Begeman [Thu, 7 Oct 2004 22:24:32 +0000 (22:24 +0000)]
Remove unnecessary header include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16824
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Chris Lattner [Thu, 7 Oct 2004 21:30:30 +0000 (21:30 +0000)]
Improve comments, no functionality changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16814
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Chris Lattner [Thu, 7 Oct 2004 20:01:31 +0000 (20:01 +0000)]
Fix a nasty dangling pointer problem, due to a free'd pointer being left in
a map. This caused problems if a later object happened to be allocated at
the free'd object's address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16813
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Chris Lattner [Thu, 7 Oct 2004 19:21:43 +0000 (19:21 +0000)]
Get friendly with Type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16812
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Chris Lattner [Thu, 7 Oct 2004 19:20:48 +0000 (19:20 +0000)]
Unfortunately the fix for the previous bug introduced the previous
exponential behavior (bork!). This patch processes stuff with an
explicit SCC finder, allowing the algorithm to be more clear,
efficient, and also (as a bonus) correct! This gets us back to taking
0.6s to disassemble my horrible .bc file that previously took something
> 30 mins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16811
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Chris Lattner [Thu, 7 Oct 2004 19:19:12 +0000 (19:19 +0000)]
Change signature of this method again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16810
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Chris Lattner [Thu, 7 Oct 2004 19:16:43 +0000 (19:16 +0000)]
These files now live in Transforms/GlobalOpt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16809
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Chris Lattner [Thu, 7 Oct 2004 19:16:26 +0000 (19:16 +0000)]
Move these files from Transforms/GlobalConstifier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16808
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Chris Lattner [Thu, 7 Oct 2004 16:19:40 +0000 (16:19 +0000)]
Fix a bug in my previous change. Unfortunately this reverts most of the
speedup, but has the advantage of not breaking a bunch of programs!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16806
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Reid Spencer [Thu, 7 Oct 2004 16:03:21 +0000 (16:03 +0000)]
Make these scripts work on SunOS too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16805
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